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mc - Visual shell for Unix-like systems.
If specified, the first path name is the directory to show in the selected panel; the second path name is the directory to be shown in the other panel.
The Midnight Commander provides a view of two directories at the same time. One of the panels is the current panel (a selection bar is in the current panel). Almost all operations take place on the current panel. Some file operations like Rename and Copy by default use the directory of the unselected panel as a destination (don't worry, they always ask you for confirmation first). For more information, see the sections on the Directory Panels, the Left and Right Menus and the File Menu.
You can execute system commands from the Midnight Commander by simply typing them. Everything you type will appear on the shell command line, and when you press Enter the Midnight Commander will execute the command line you typed; read the Shell Command Line and Input Line Keys sections to learn more about the command line.
When you left click on a file in the directory panels, that file is selected; if you click with the right button, the file is marked (or unmarked, depending on the previous state).
Double-clicking on a file will try to execute the command if it is an executable program; and if the extension file has a program specified for the file's extension, the specified program is executed.
Also, it is possible to execute the commands assigned to the function key labels by clicking on them.
If a mouse button is clicked on the top frame line of the directory panel, it is scrolled one page up. Likewise, a click on the bottom frame line will cause scrolling one page down. This frame line method works also in the Help Viewer and the Directory Tree.
The default auto repeat rate for the mouse buttons is 400 milliseconds. This may be changed to other values by editing the ~/.mc/ini file and changing the mouse_repeat_rate parameter.
If you are running the Midnight Commander with the mouse support, you can get the default mouse behavior (cutting and pasting text) by holding down the Shift key.
All input lines in the Midnight Commander use an approximation to the GNU Emacs editor's key bindings.
There are many sections which tell about the keys. The following are the most important.
The File Menu section documents the keyboard shortcuts for the commands appearing in the File menu. This section includes the function keys. Most of these commands perform some action, usually on the selected file or the tagged files.
The Directory Panels section documents the keys which select a file or tag files as a target for a later action (the action is usually one from the file menu).
The Shell Command Line section list the keys which are used for entering and editing command lines. Most of these copy file names and such from the directory panels to the command line (to avoid excessive typing) or access the command line history.
Input Line Keys are used for editing input lines. This means both the command line and the input lines in the query dialogs.
When the subshell support is compiled in, you can type C-o at any time and you will be taken back to the Midnight Commander main screen, to return to your application just type C-o. If you have an application suspended by using this trick, you won't be able to execute other programs from the Midnight Commander until you terminate the suspended application.
If the expression starts or ends with a slash (/), then it will select directories instead of files.
Other parts of the Midnight Commander use some of the same movement keys, so this section may be of use for those parts too.
The help viewer and the file viewer accept the following keys in addition the to ones mentioned above:
The Left and Right Menus allow you to modify the appearance of the left and right directory panels.
The File Menu lists the actions you can perform on the currently selected file or the tagged files.
The Command Menu lists the actions which are more general and bear no relation to the currently selected file or the tagged files.
The Options Menu lists the actions which allow you to customize the Midnight Commander.
The brief view shows only the file name and it has two columns (therefore showing twice as many files as other views). The long view is similar to the output of ls -l command. The long view takes the whole screen width.
If you choose the "User" display format, then you have to specify the display format.
The user display format must start with a panel size specifier. This may be "half" or "full", and they specify a half screen panel and a full screen panel respectively.
After the panel size, you may specify the two columns mode on the panel, this is done by adding the number "2" to the user format string.
After this you add the name of the fields with an optional size specifier. This are the available fields you may display:
Also you can use following keywords to define the panel layout:
To force one field to a fixed size (a size specifier), you just add : followed by the number of characters you want the field to have. If the number is followed by the symbol +, then the size specifies the minimal field size - if the program finds out that there is more space on the screen, it will then expand that field.
For example, the Full display corresponds to this format:
half type name | size | mtime
And the Long display corresponds to this format:
full perm space nlink space owner space group space size space mtime space name
This is a nice user display format:
half name | size:7 | type mode:3
Panels may also be set to the following modes:
By default directories are sorted before files but this can be changed from the Options menu (option Mix all files).
The File menu has the following commands (keyboard shortcuts in parentheses):
Help (F1)
Invokes the built-in hypertext help viewer. Inside the help viewer, you can use the Tab key to select the next link and the Enter key to follow that link. The keys Space and Backspace are used to move forward and backward in a help page. Press F1 again to get the full list of accepted keys.
Menu (F2)
Invoke the user menu. The user menu provides an easy way to provide users with a menu and add extra features to the Midnight Commander.
View (F3, Shift-F3)
View the currently selected file. By default this invokes the Internal File Viewer but if the option "Use internal view" is off, it invokes an external file viewer specified by the VIEWER environment variable. If VIEWER is undefined, the PAGER environment variable is tried. If PAGER is also undefined, the "view" command is invoked. If you use Shift-F3 instead, the viewer will be invoked without doing any formatting or preprocessing to the file.
Filtered View (Alt-!)
This command prompts for a command and its arguments (the argument defaults to the currently selected file name), the output from such command is shown in the internal file viewer.
Edit (F4, F14)
Press F4 to edit the highlighted file. Press F14 (usually Shift-F4) to start the editor with a new, empty file. Currently they invoke the vi editor, or the editor specified in the EDITOR environment variable, or the Internal File Editor if the use_internal_edit option is on.
Copy (F5, F15)
Press F5 to pop up an input dialog to copy the currently selected file (or the tagged files, if there is at least one file tagged) to the directory/filename you specify in the input dialog. The destination defaults to the directory in the non-selected panel. During this process, you can press C-c or ESC to abort the operation. For details about source mask (which will be usually either * or ^\(.*\)$ depending on setting of Use shell patterns) and possible wildcards in the destination see Mask copy/rename.
F15 (usually Shift-F5) is similar, but defaults to the directory in the selected panel. It always operates on the selected file, regardless of any tagged files.
On some systems, it is possible to do the copy in the background by clicking on the background button (or pressing Alt-b in the dialog box). The Background Jobs is used to control the background process.
Link (C-x l)
Create a hard link to the current file.
SymLink (C-x s)
Create a symbolic link to the current file. To those of you who don't know what links are: creating a link to a file is a bit like copying the file, but both the source filename and the destination filename represent the same file image. For example, if you edit one of these files, all changes you make will appear in both files. Some people call links aliases or shortcuts.
A hard link appears as a real file. After making it, there is no way of telling which one is the original and which is the link. If you delete either one of them the other one is still intact. It is very difficult to notice that the files represent the same image. Use hard links when you don't even want to know.
A symbolic link is a reference to the name of the original file. If the original file is deleted the symbolic link is useless. It is quite easy to notice that the files represent the same image. The Midnight Commander shows an "@"-sign in front of the file name if it is a symbolic link to somewhere (except to directory, where it shows a tilde (~)). The original file which the link points to is shown on mini-status line if the Show mini-status option is enabled. Use symbolic links when you want to avoid the confusion that can be caused by hard links.
Rename/Move (F6, F16)
Press F6 to pop up an input dialog to copy the currently selected file (or the tagged files, if there is at least one file tagged) to the directory/filename you specify in the input dialog. The destination defaults to the directory in the non-selected panel. For more details look at Copy (F5) operation above, most of the things are quite similar.
F16 (usually Shift-F6) is similar, but defaults to the directory in the selected panel. It always operates on the selected file, regardless of any tagged files.
On some systems, it is possible to do the copy in the background by clicking on the background button (or pressing Alt-b in the dialog box). The Background Jobs is used to control the background process.
Mkdir (F7)
Pop up an input dialog and creates the directory specified.
Delete (F8)
Delete the currently selected file or the tagged files in the currently selected panel. During the process, you can press C-c or ESC to abort the operation.
Quick cd (Alt-c) Use the quick cd command if you have full command line and want to cd somewhere.
Select group (+)
This is used to select (tag) a group of files. The Midnight Commander will prompt for a regular expression describing the group. When Shell Patterns are enabled, the regular expression is much like the filename globbing in the shell (* standing for zero or more characters and ? standing for one character). If Shell Patterns is off, then the tagging of files is done with normal regular expressions (see ed (1)).
To mark directories instead of files, the expression must start or end with a '/'.
Unselect group (\\)
Used to unselect a group of files. This is the opposite of the Select group command.
Quit (F10, Shift-F10)
Terminate the Midnight Commander. Shift-F10 is used when you want to quit and you are using the shell wrapper. Shift-F10 will not take you to the last directory you visited with the Midnight Commander, instead it will stay at the directory where you started the Midnight Commander.
The Find file command allows you to search for a specific file. The "Swap panels" command swaps the contents of the two directory panels.
The "Panels on/off" command shows the output of the last shell command. This works only on xterm and on Linux and FreeBSD console.
The Compare directories (C-x d) command compares the directory panels with each other. You can then use the Copy (F5) command to make the panels identical. There are three compare methods. The quick method compares only file size and file date. The thorough method makes a full byte-by-byte compare. The thorough method is not available if the machine does not support the mmap(2) system call. The size-only compare method just compares the file sizes and does not check the contents or the date times, it just checks the file size.
The Command history command shows a list of typed commands. The selected command is copied to the command line. The command history can also be accessed by typing Alt-p or Alt-n.
The Directory hotlist (C-\) command makes changing of the current directory to often used directories faster.
The External panelize allows you to execute an external program, and make the output of that program the contents of the current panel.
Extension file edit command allows you to specify programs to executed when you try to execute, view, edit and do a bunch of other thing on files with certain extensions (filename endings). The Menu file edit command may be used for editing the user menu (which appears by pressing F2).
There are two ways to invoke the tree. The real directory tree command is available from Commands menu. The other way is to select tree view from the Left or Right menu.
To get rid of long delays the Midnight Commander creates the tree figure by scanning only a small subset of all the directories. If the directory which you want to see is missing, move to its parent directory and press C-r (or F2).
You can use the following keys:
General movement keys are accepted.
Enter. In the directory tree, exits the directory tree and changes to this directory in the current panel. In the tree view, changes to this directory in the other panel and stays in tree view mode in the current panel.
C-r, F2 (Rescan). Rescan this directory. Use this when the tree figure is out of date: it is missing subdirectories or shows some subdirectories which don't exist any more.
F3 (Forget). Delete this directory from the tree figure. Use this to remove clutter from the figure. If you want the directory back to the tree figure press F2 in its parent directory.
F4 (Static/Dynamic). Toggle between the dynamic navigation mode (default) and the static navigation mode.
In the static navigation mode you can use the Up and Down keys to select a directory. All known directories are shown.
In the dynamic navigation mode you can use the Up and Down keys to select a sibling directory, the Left key to move to the parent directory, and the Right key to move to a child directory. Only the parent, sibling and children directories are shown, others are left out. The tree figure changes dynamically as you traverse.
F5 (Copy). Copy the directory.
F6 (RenMov). Move the directory.
F7 (Mkdir). Make a new directory below this directory.
F8 (Delete). Delete this directory from the file system.
C-s, Alt-s. Search the next directory matching the search string. If there is no such directory these keys will move one line down.
C-h, Backspace. Delete the last character of the search string.
Any other character. Add the character to the search string and move to the next directory which starts with these characters. In the tree view you must first activate the search mode by pressing C-s. The search string is shown in the mini status line.
The following actions are available only in the directory tree. They aren't supported in the tree view.
F1 (Help). Invoke the help viewer and show this section.
Esc, F10. Exit the directory tree. Do not change the directory.
The mouse is supported. A double-click behaves like Enter. See also the section on mouse support.
The contents field accepts regular expressions similar to egrep(1). That means you have to escape characters with a special meaning to egrep with "\", e.g. if you search for "strcmp (" you will have to input "strcmp \(" (without the double quotes).
You can start the search by pressing the OK button. During the search you can stop from the Stop button and continue from the Start button.
You can browse the filelist with the up and down arrow keys. The Chdir button will change to the directory of the currently selected file. The Again button will ask for the parameters for a new search. The Quit button quits the search operation. The Panelize button will place the found files to the current directory panel so that you can do additional operations on them (view, copy, move, delete and so on). After panelizing you can press C-r to return to the normal file listing.
It is possible to have a list of directories that the Find File command should skip during the search (for example, you may want to avoid searches on a CD-ROM or on a NFS directory that is mounted across a slow link).
Directories to be skipped should be set on the variable find_ignore_dirs in the Misc section of your ~/.mc/ini file.
Directory components should be separated with a colon, here is an example:
[Misc] find_ignore_dirs=/cdrom:/nfs/wuarchive:/afs
You may consider using the External panelize command for some operations. Find file command is for simple queries only, while using External panelize you can do as mysterious searches as you would like.
For example, if you want to manipulate in one of the panels all the symbolic links in the current directory, you can use external panelization to run the following command:
find . -type l -print
Upon command completion, the directory contents of the panel will no longer be the directory listing of the current directory, but all the files that are symbolic links.
If you want to panelize all of the files that have been downloaded from your FTP server, you can use this awk command to extract the file name from the transfer log files:
awk '$9 ~! /incoming/ { print $9 }' < /usr/adm/xferlog
You may want to save often used panelize commands under a descriptive name, so that you can recall them quickly. You do this by typing the command on the input line and pressing Add new button. Then you enter a name under which you want the command to be saved. Next time, you just choose that command from the list and do not have to type it again.
This makes cd to often used directories faster. You may consider using the CDPATH variable as described in internal cd command description.
All lines starting with # or empty lines are thrown away.
Lines starting in the first column should have following format:
keyword/expr, i.e. everything after the slash until new line is expr.
keyword can be:
Other lines should start with a space or tab and should be of the format: keyword=command (with no spaces around =), where keyword should be: Open (invoked on Enter or double click), View (F3), Edit (F4) or Include (to add rules from the common section). command is any one-line shell command, with the simple macro substitution.
Rules are matched from top to bottom, thus the order is important. If the appropriate action is missing, search continues as if this rule didn't match (i.e. if a file matches the first and second entry and View action is missing in the first one, then on pressing F3 the View action from the second entry will be used). default should match all the actions.
The format of the menu file is very simple. Lines that start with anything but space or tab are considered entries for the menu (in order to be able to use it like a hot key, the first character should be a letter). All the lines that start with a space or a tab are the commands that will be executed when the entry is selected.
When an option is selected all the command lines of the option are copied to a temporary file in the temporary directory (usually /usr/tmp) and then that file is executed. This allows the user to put normal shell constructs in the menus. Also simple macro substitution takes place before executing the menu code. For more information, see macro substitution.
Here is a sample mc.menu file:
A Dump the currently selected file
od -c %f
B Edit a bug report and send it to root
I=`mktemp ${MC_TMPDIR:-/tmp}/mail.XXXXXX` || exit 1
vi $I
mail -s "Midnight Commander bug" root < $I
rm -f $I
M Read mail
emacs -f rmail
N Read Usenet news
emacs -f gnus
H Call the info hypertext browser
info
J Copy current directory to other panel recursively
tar cf - . | (cd %D && tar xvpf -)
K Make a release of the current subdirectory
echo -n "Name of distribution file: "
read tar
ln -s %d `dirname %d`/$tar
cd ..
tar cvhf ${tar}.tar $tar
= f *.tar.gz | f *.tgz & t n
X Extract the contents of a compressed tar file
tar xzvf %f
Default Conditions
Each menu entry may be preceded by a condition. The condition must start from the first column with a '=' character. If the condition is true, the menu entry will be the default entry.
Condition syntax: = <sub-cond>
or: = <sub-cond> | <sub-cond> ...
or: = <sub-cond> & <sub-cond> ...
Sub-condition is one of following:
y <pattern> syntax of current file matching pattern?
(for edit menu only)
f <pattern> current file matching pattern?
F <pattern> other file matching pattern?
d <pattern> current directory matching pattern?
D <pattern> other directory matching pattern?
t <type> current file of type?
T <type> other file of type?
x <filename> is it executable filename?
! <sub-cond> negate the result of sub-condition
Pattern is a normal shell pattern or a regular expression, according to the shell patterns option. You can override the global value of the shell patterns option by writing "shell_patterns=x" on the first line of the menu file (where "x" is either 0 or 1).
Type is one or more of the following characters:
n not a directory r regular file d directory l link c character device b block device f FIFO (pipe) s socket x executable file t tagged
For example 'rlf' means either regular file, link or fifo. The 't' type is a little special because it acts on the panel instead of the file. The condition '=t t' is true if there are tagged files in the current panel and false if not.
If the condition starts with '=?' instead of '=' a debug trace will be shown whenever the value of the condition is calculated.
The conditions are calculated from left to right. This means
= f *.tar.gz | f *.tgz & t n
is calculated as
( (f *.tar.gz) | (f *.tgz) ) & (t n)
Here is a sample of the use of conditions:
= f *.tar.gz | f *.tgz & t n
L List the contents of a compressed tar-archive
gzip -cd %f | tar xvf -
Addition Conditions
If the condition begins with '+' (or '+?') instead of '=' (or '=?') it is an addition condition. If the condition is true the menu entry will be included in the menu. If the condition is false the menu entry will not be included in the menu.
You can combine default and addition conditions by starting condition with '+=' or '=+' (or '+=?' or '=+?' if you want debug trace). If you want to use two different conditions, one for adding and another for defaulting, you can precede a menu entry with two condition lines, one starting with '+' and another starting with '='.
Comments are started with '#'. The additional comment lines must start with '#', space or tab.
The Configuration command pops up a dialog from which you can change most of settings of the Midnight Commander.
The Layout command pops up a dialog from which you specify a bunch of options how mc looks like on the screen.
The Confirmation command pops up a dialog from which you specify which actions you want to confirm.
The Display bits command pops up a dialog from which you may select which characters is your terminal able to display.
The Learn keys command pops up a dialog from which you test some keys which are not working on some terminals and you may fix them.
The Virtual FS command pops up a dialog from which you specify some VFS related options.
The Save setup command saves the current settings of the Left, Right and Options menus. A small number of other settings is saved, too.
Panel Options
Show Backup Files. If enabled, the Midnight Commander will show files ending with a tilde. Otherwise, they won't be shown (like GNU's ls option -B).
Show Hidden Files. If enabled, the Midnight Commander will show all files that start with a dot (like ls -a).
Mark moves down. If enabled, the selection bar will move down when you mark a file (with either C-t or the Insert key).
Drop down menus. When this option is enabled, the pull down menus will be activated as soon as you press the F9 key. Otherwise, you will only get the menu title, and you will have to activate the menu either with the arrow keys or with the hotkeys. It is recommended if you are using hotkeys.
Mix all files. If this option is enabled, all files and directories are shown mixed together. If the option is off, directories (and links to directories) are shown at the beginning of the listing, and other files below.
Fast directory reload. If this option is enabled, the Midnight Commander will use a trick to determine if the directory contents have changed. The trick is to reload the directory only if the i-node of the directory has changed; this means that reloads only happen when files are created or deleted. If what changes is the i-node for a file in the directory (file size changes, mode or owner changes, etc) the display is not updated. In these cases, if you have the option on, you have to rescan the directory manually (with C-r).
Pause after run
After executing your commands, the Midnight Commander can pause, so that you can examine the output of the command. There are three possible settings for this variable:
Never. Means that you do not want to see the output of your command. If you are using the Linux or FreeBSD console or an xterm, you will be able to see the output of the command by typing C-o.
On dumb terminals. You will get the pause message on terminals that are not capable of showing the output of the last command executed (any terminal that is not an xterm or the Linux console).
Always. The program will pause after executing all of your commands.
Other Options
Verbose operation. This toggles whether the file Copy, Rename and Delete operations are verbose (i.e., display a dialog box for each operation). If you have a slow terminal, you may wish to disable the verbose operation. It is automatically turned off if the speed of your terminal is less than 9600 bps.
Compute totals. If this option is enabled, the Midnight Commander computes total byte sizes and total number of files prior to any Copy, Rename and Delete operations. This will provide you with a more accurate progress bar at the expense of some speed. This option has no effect, if Verbose operation is disabled.
Shell Patterns. By default the Select, Unselect and Filter commands will use shell-like regular expressions. The following conversions are performed to achieve this: the '*' is replaced by '.*' (zero or more characters); the '?' is replaced by '.' (exactly one character) and '.' by the literal dot. If the option is disabled, then the regular expressions are the ones described in ed(1).
Auto Save Setup. If this option is enabled, when you exit the Midnight Commander the configurable options of the Midnight Commander are saved in the ~/.mc/ini file.
Auto menus. If this option is enabled, the user menu will be invoked at startup. Useful for building menus for non-unixers.
Use internal editor. If this option is enabled, the built-in file editor is used to edit files. If the option is disabled, the editor specified in the EDITOR environment variable is used. If no editor is specified, vi is used. See the section on the internal file editor.
Use internal viewer. If this option is enabled, the built-in file viewer is used to view files. If the option is disabled, the pager specified in the PAGER environment variable is used. If no pager is specified, the view command is used. See the section on the internal file viewer.
Complete: show all. By default the Midnight Commander pops up all possible completions if the completion is ambiguous only when you press Alt-Tab for the second time. For the first time, it just completes as much as possible and beeps in the case of ambiguity. Enable this option if you want to see all possible completions even after pressing Alt-Tab the first time.
Rotating dash. If this option is enabled, the Midnight Commander shows a rotating dash in the upper right corner as a work in progress indicator.
Lynx-like motion. If this option is enabled, you may use the arrows keys to automatically chdir if the current selection is a subdirectory and the shell command line is empty. By default, this setting is off.
Cd follows links. This option, if set, causes the Midnight Commander to follow the logical chain of directories when changing current directory either in the panels, or using the cd command. This is the default behavior of bash. When unset, the Midnight Commander follows the real directory structure, so cd .. if you've entered that directory through a link will move you to the current directory's real parent and not to the directory where the link was present.
Safe delete. If this option is enabled, deleting files and directory hotlist entries unintentionally becomes more difficult. The default selection in the confirmation dialogs for deletion changes from "Yes" to "No". This option is disabled by default.
The rest of the screen area is used for the two directory panels. You can specify whether the area is split to the panels in vertical or horizontal direction. The split can be equal or you can specify an unequal split.
You can specify whether permissions and file types should be highlighted with distinctive Colors. If the permission highlighting is enabled, the parts of the perm and mode display fields which apply to the user running Midnight Commander are highlighted with the color defined by the selected keyword. If the file type highlighting is enabled, files are colored according to their file type (e.g. directory, core file, executable, and so on).
If the Show Mini-Status option is enabled, one line of status information about the currently selected item is shown at the bottom of the panels.
When run in a terminal emulator for X11, Midnight Commander sets the terminal window title to the current working directory and updates it when necessary. If your terminal emulator is broken and you see some incorrect output on startup and directory change, turn off the Xterm Window Title option.
You can move around with the Tab key and with the vi moving keys ('h' left, 'j' down, 'k' up and 'l' right). Once you press any cursor movement key and it is recognized, you can use that key as well.
You can test keys just by pressing each of them. When you press a key and it is recognized properly, OK should appear next to the name of that key. Once a key is marked OK it starts working as usually, e.g. F1 pressed the first time will just check that the F1 key works, but after that it will show help. The same applies to the arrow keys. The Tab key should be working always.
If some keys do not work properly then you won't see OK appear after pressing one of these. Then you may want to redefine it. Do it by pressing the button with the name of that key (either by the mouse or by Enter or Space after selecting the button with Tab or arrows). Then a message box will appear asking you to press that key. Do it and wait until the message box disappears. If you want to abort, just press Escape once and wait.
When you finish with all the keys, you can Save them. The definitions for the keys you have redefined will be written into the [terminal:TERM] section of your ~/.mc/ini file (where TERM is the name of your current terminal). The definitions of the keys that were already working properly are not saved.
The Midnight Commander keeps in memory the information related to some of the virtual file systems to speed up the access to the files in the file system (for example, directory listings fetched from FTP servers).
Also, in order to access the contents of compressed files (for example, compressed tar files) the Midnight Commander needs to create temporary uncompressed files on your disk.
Since both the information in memory and the temporary files on disk take up resources, you may want to tune the parameters of the cached information to decrease your resource usage or to maximize the speed of access to frequently used file systems.
Because of the format of the tar archives, the Tar filesystem needs to read the whole file just to load the file entries. Since most tar files are usually kept compressed (plain tar files are species in extinction), the tar file system has to uncompress the file on the disk in a temporary location and then access the uncompressed file as a regular tar file.
Now, since we all love to browse files and tar files all over the disk, it's common that you will leave a tar file and the re-enter it later. Since decompression is slow, the Midnight Commander will cache the information in memory for a limited time. When the timeout expires, all the resources associated with the file system are released. The default timeout is set to one minute.
The FTP File System (ftpfs) allows you to browse directories on remote FTP servers. It has several options.
ftp anonymous password is the password used when you login as "anonymous". Some sites require a valid e-mail address. On the other hand, you probably don't want to give your real e-mail address to untrusted sites, especially if you are not using spam filtering.
ftpfs keeps the directory listing it fetches from a FTP server in a cache. The cache expire time is configurable with the ftpfs directory cache timeout option. A low value for this option may slow down every operation on the ftpfs because every operation would require sending a request to the FTP server.
You can define an FTP proxy host for doing FTP. Note that most modern firewalls are fully transparent at least for passive FTP (see below), so FTP proxies are considered obsolete.
If Always use ftp proxy is not set, you can use the exclamation sign to enable proxy for certain hosts. See FTP File System for examples.
If this option is set, the program will do two things: consult the /usr/lib/mc/mc.no_proxy file for lines containing host names that are local (if the host name starts with a dot, it is assumed to be a domain) and to assume that any hostnames without dots in their names are directly accessible. All other hosts will be accessed through the specified FTP proxy.
You can enable using ~/.netrc file, which keeps login names and passwords for ftp servers. See netrc (5) for the description of the .netrc format.
Use passive mode enables using FTP passive mode, when the connection for data transfer is initiated by the client, not by the server. This option is recommended and enabled by default. If this option is turned off, the data connection is initiated by the server. This may not work with some firewalls.
The Save Setup command creates the ~/.mc/ini file by saving the current settings of the Left, Right and Options menus.
If you activate the auto save setup option, MC will always save the current settings when exiting.
There also exist settings which can't be changed from the menus. To change these settings you have to edit the setup file with your favorite editor. See the section on Special Settings for more information.
If you press Enter over a file that is not executable, the Midnight Commander checks the extension of the selected file against the extensions in the Extensions File. If a match is found then the code associated with that extension is executed. A very simple macro expansion takes place before executing the command.
Tilde substitution. The (~) will be substituted with your home directory, if you append a username after the tilde, then it will be substituted with the login directory of the specified user.
For example, ~guest is the home directory for the user guest, while ~/guest is the directory guest in your home directory.
Previous directory. You can jump to the directory you were previously by using the special directory name '-' like this: cd -
CDPATH directories. If the directory specified to the cd command is not in the current directory, then The Midnight Commander uses the value in the environment variable CDPATH to search for the directory in any of the named directories.
For example you could set your CDPATH variable to ~/src:/usr/src, allowing you to change your directory to any of the directories inside the ~/src and /usr/src directories, from any place in the file system by using its relative name (for example cd linux could take you to /usr/src/linux).
The macros are:
When the subshell code is activated the Midnight Commander will spawn a concurrent copy of your shell (the one defined in the SHELL variable and if it is not defined, then the one in the /etc/passwd file) and run it in a pseudo terminal, instead of invoking a new shell each time you execute a command, the command will be passed to the subshell as if you had typed it. This also allows you to change the environment variables, use shell functions and define aliases that are valid until you quit the Midnight Commander.
If you are using bash you can specify startup commands for the subshell in your ~/.mc/bashrc file and special keyboard maps in the ~/.mc/inputrc file. tcsh users may specify startup commands in the ~/.mc/tcshrc file.
When the subshell code is used, you can suspend applications at any time with the sequence C-o and jump back to the Midnight Commander, if you interrupt an application, you will not be able to run other external commands until you quit the application you interrupted.
An extra added feature of using the subshell is that the prompt displayed by the Midnight Commander is the same prompt that you are currently using in your shell.
The OPTIONS section has more information on how you can control the subshell code.
The Chmod window has two parts - Permissions and File.
In the File section are displayed the name of the file or directory and its permissions in octal form, as well as its owner and group.
In the Permissions section there is a set of check buttons which correspond to the file attribute bits. As you change the attribute bits, you can see the octal value change in the File section.
To move between the widgets (buttons and check buttons) use the arrow keys or the Tab key. To change the state of the check buttons or to select a button use Space. You can also use the hotkeys on the buttons to quickly activate them. Hotkeys are shown as highlighted letters on the buttons.
To set the attribute bits, use the Enter key.
When working with a group of files or directories, you just click on the bits you want to set or clear. Once you have selected the bits you want to change, you select one of the action buttons (Set marked or Clear marked).
Finally, to set the attributes exactly to those specified, you can use the [Set all] button, which will act on all the tagged files.
[Marked all] set only marked attributes to all selected files
[Set marked] set marked bits in attributes of all selected files
[Clean marked] clear marked bits in attributes of all selected files
[Set] set the attributes of one file
[Cancel] cancel the Chmod command
There are two buttons at the bottom of the dialog. Pressing the Skip button will skip the rest of the current file. Pressing the Abort button will abort the whole operation, the rest of the files are skipped.
There are three other dialogs which you can run into during the file operations.
The error dialog informs about error conditions and has three choices. Normally you select either the Skip button to skip the file or the Abort button to abort the operation altogether. You can also select the Retry button if you fixed the problem from another terminal.
The replace dialog is shown when you attempt to copy or move a file on the top of an existing file. The dialog shows the dates and sizes of the both files. Press the Yes button to overwrite the file, the No button to skip the file, the All button to overwrite all the files, the None button to never overwrite and the Update button to overwrite if the source file is newer than the target file. You can abort the whole operation by pressing the Abort button.
The recursive delete dialog is shown when you try to delete a directory which is not empty. Press the Yes button to delete the directory recursively, the No button to skip the directory, the All button to delete all the directories and the None button to skip all the non-empty directories. You can abort the whole operation by pressing the Abort button. If you selected the Yes or All button you will be asked for a confirmation. Type "yes" only if you are really sure you want to do the recursive delete.
If you have tagged files and perform an operation on them only the files on which the operation succeeded are untagged. Failed and skipped files are left tagged.
There are other options which you can set:
Follow links
determines whether make the symlinks and hardlinks in the source directory (recursively in subdirectories) new links in the target directory or whether would you like to copy their content.
Dive into subdirs
determines the behavior when the source directory is about to be copied, but the target directory already exists. The default action is to copy the contents of the source directory into the target directory. Enabling this option causes copying the source directory itself into the target directory.
For example, you want to copy directory /foo containing file bar to /bla/foo, which is an already existing directory. Normally (when Dive into subdirs is not set), mc would copy file /foo/bar into the file /bla/foo/bar. By enabling this option the /bla/foo/foo directory will be created, and /foo/bar will be copied into /bla/foo/foo/bar.
Preserve attributes
determines whether to preserve the permissions, timestamps and (if you are root) the ownership of the original files. If this option is not set, the current value of the umask will be respected.
Use shell patterns on
When the shell patterns option is on you can use the '*' and '?' wildcards in the source mask. They work like they do in the shell. In the target mask only the '*' and '\<digit>' wildcards are allowed. The first '*' wildcard in the target mask corresponds to the first wildcard group in the source mask, the second '*' corresponds to the second group and so on. The '\1' wildcard corresponds to the first wildcard group in the source mask, the '\2' wildcard corresponds to the second group and so on all the way up to '\9'. The '\0' wildcard is the whole filename of the source file.
Two examples:
If the source mask is "*.tar.gz", the destination is "/bla/*.tgz" and the file to be copied is "foo.tar.gz", the copy will be "foo.tgz" in "/bla".
Suppose you want to swap basename and extension so that "file.c" would become "c.file" and so on. The source mask for this is "*.*" and the destination is "\2.\1".
Use shell patterns off
When the shell patterns option is off the MC doesn't do automatic grouping anymore. You must use '\(...\)' expressions in the source mask to specify meaning for the wildcards in the target mask. This is more flexible but also requires more typing. Otherwise target masks are similar to the situation when the shell patterns option is on.
Two examples:
If the source mask is "^\(.*\)\.tar\.gz$", the destination is "/bla/*.tgz" and the file to be copied is "foo.tar.gz", the copy will be "/bla/foo.tgz".
Let's suppose you want to swap basename and extension so that "file.c" will become "c.file" and so on. The source mask for this is "^\(.*\)\.\(.*\)$" and the destination is "\2.\1".
Case Conversions
You can also change the case of the filenames. If you use '\u' or '\l' in the target mask, the next character will be converted to uppercase or lowercase correspondingly.
If you use '\U' or '\L' in the target mask, the next characters will be converted to uppercase or lowercase correspondingly up to the next '\E' or next '\U', '\L' or the end of the file name.
The '\u' and '\l' are stronger than '\U' and '\L'.
For example, if the source mask is '*' (shell patterns on) or '^\(.*\)$' (shell patterns off) and the target mask is '\L\u*' the file names will be converted to have initial upper case and otherwise lower case.
You can also use '\' as a quote character. For example, '\\' is a backslash and '\*' is an asterisk.
The viewer will try to use the best method provided by your system or the file type to display the information. Some character sequences, which appear most often in preformatted manual pages, are displayed bold and underlined, thus making a pretty display of your files.
When in hex mode, the search function accepts text in quotes and constant numbers. Text in quotes is matched exactly after removing the quotes. Each number matches one byte. You can mix quoted text with constants like this:
"String" -1 0xBB 012 "more text"
Note that 012 is an octal number. -1 is converted to 0xFF.
Here is a listing of the actions associated with each key that the Midnight Commander handles in the internal file viewer.
F1 Invoke the built-in hypertext help viewer.
F2 Toggle the wrap mode.
F4 Toggle the hex mode.
F5 Goto line. This will prompt you for a line number and will display that line.
F6, /. Regular expression search.
?, Reverse regular expression search.
F7 Normal search / hex mode search.
C-s, F17, n. Start normal search if there was no previous search expression else find next match.
C-r. Start reverse search if there was no previous search expression else find next match.
F8 Toggle Raw/Parsed mode: This will show the file as found on disk or if a processing filter has been specified in the mc.ext file, then the output from the filter. Current mode is always the other than written on the button label, since on the button is the mode which you enter by that key.
F9 Toggle the format/unformat mode: when format mode is on the viewer will interpret some string sequences to show bold and underline with different colors. Also, on button label is the other mode than current.
F10, Esc. Exit the internal file viewer.
next-page, space, C-v. Scroll one page forward.
prev-page, Alt-v, C-b, backspace. Scroll one page backward.
down-key Scroll one line forward.
up-key Scroll one line backward.
C-l Refresh the screen.
C-o Switch to the subshell and show the command screen.
! Like C-o, but run a new shell if the subshell is not running.
[n] m Set the mark n.
[n] r Jump to the mark n.
C-f Jump to the next file.
C-b Jump to the previous file.
Alt-r Toggle the ruler.
It's possible to instruct the file viewer how to display a file, look at the Extension File Edit section
The features it presently supports are: block copy, move, delete, cut, paste; key for key undo; pull-down menus; file insertion; macro commands; regular expression search and replace (and our own scanf-printf search and replace); shift-arrow text highlighting (if supported by the terminal); insert-overwrite toggle; word wrap; autoindent; tunable tab size; syntax highlighting for various file types; and an option to pipe text blocks through shell commands like indent and ispell.
The editor is very easy to use and requires no tutoring. To see what keys do what, just consult the appropriate pull-down menu. Other keys are: Shift movement keys do text highlighting. Ctrl-Ins copies to the file cooledit.clip and Shift-Ins pastes from cooledit.clip. Shift-Del cuts to cooledit.clip, and Ctrl-Del deletes highlighted text. Mouse highlighting also works, and you can override the mouse as usual by holding down the shift key while dragging the mouse to let normal terminal mouse highlighting work.
To define a macro, press Ctrl-R and then type out the key strokes you want to be executed. Press Ctrl-R again when finished. You can then assign the macro to any key you like by pressing that key. The macro is executed when you press Ctrl-A and then the assigned key. The macro is also executed if you press Meta, Ctrl, or Esc and the assigned key, provided that the key is not used for any other function. Once defined, the macro commands go into the file .mc/cedit/cooledit.macros in your home directory. You can delete a macro by deleting the appropriate line in this file.
F19 will format the currently highlighted block (plain text or C or C++ code or another). This is controlled by the file /usr/share/mc/edit.indent.rc which is copied to .mc/cedit/edit.indent.rc in your home directory the first time you use it.
You can use scanf search and replace to search and replace a C format string. First take a look at the sscanf and sprintf man pages to see what a format string is and how it works. Consider following example. Suppose you want to replace all occurrences of an open bracket, three comma separated numbers, and a close bracket, with the word apples, the third number, the word oranges and then the second number. Then fill in the Replace dialog box as follows:
Enter search string: (%d,%d,%d) Enter replacement string: apples %d oranges %d Enter replacement argument order: 3,2
The last line specifies that the third and then the second number are to be used in place of the first and second.
It is advisable to use this feature with Prompt on replace on, because a match is thought to be found whenever the number of arguments found matches the number given, which is not always a real match. Scanf also treats whitespace as being elastic. Note that the scanf format %[ is very useful for scanning strings, and whitespace.
The editor also displays non-us characters (160+). When editing binary files, you should set display bits to 7 bits in the options menu to keep the spacing clean.
Attempt to perform completion on the text before current position. MC attempts completion treating the text as variable (if the text begins with $), username (if the text begins with ~), hostname (if the text begins with @) or command (if you are on the command line in the position where you might type a command, possible completions then include shell reserved words and shell built-in commands as well) in turn. If none of these matches, filename completion is attempted.
Filename, username, variable and hostname completion works on all input lines, command completion is command line specific. If the completion is ambiguous (there are more different possibilities), MC beeps and the following action depends on the setting of the Complete: show all option in the Configuration dialog. If it is enabled, a list of all possibilities pops up next to the current position and you can select with the arrow keys and Enter the correct entry. You can also type the first letters in which the possibilities differ to move to a subset of all possibilities and complete as much as possible. If you press Alt-Tab again, only the subset will be shown in the listbox, otherwise the first item which matches all the previous characters will be highlighted. As soon as there is no ambiguity, dialog disappears, but you can hide it by canceling keys Esc, F10 and left and right arrow keys. If Complete: show all is disabled, the dialog pops up only if you press Alt-Tab for the second time, for the first time MC just beeps.
Currently the Midnight Commander is packaged with some Virtual File Systems (VFS): the local file system, used for accessing the regular Unix file system; the ftpfs, used to manipulate files on remote systems with the FTP protocol; the tarfs, used to manipulate tar and compressed tar files; the undelfs, used to recover deleted files on ext2 file systems (the default file system for Linux systems), fish (for manipulating files over shell connections such as rsh and ssh) and finally the mcfs (Midnight Commander file system), a network based file system. If the code was compiled with smbfs support, you can manipulate files on remote systems with the SMB (CIFS) protocol.
A generic extfs (EXTernal virtual File System) is provided in order to easily expand VFS capabilities using scripts and external software.
The VFS switch code will interpret all of the path names used and will forward them to the correct file system, the formats used for each one of the file systems is described later in their own section.
/#ftp:[!][user[:pass]@]machine[:port][remote-dir]
The user, port and remote-dir elements are optional. If you specify the user element, the Midnight Commander will login to the remote machine as that user, otherwise it will use anonymous login or the login name from the ~/.netrc file. The optional pass element is the password used for the connection. Using the password in the VFS directory name is not recommended, because it can appear on the screen in clear text and can be saved to the directory history.
To enable using FTP proxy, prepend ! (an exclamation sign) to the hostname.
Examples:
/#ftp:ftp.nuclecu.unam.mx/linux/local
/#ftp:tsx-11.mit.edu/pub/linux/packages
/#ftp:!behind.firewall.edu/pub
/#ftp:guest@remote-host.com:40/pub
/#ftp:miguel:xxx@server/pub
Please check the Virtual File System dialog box for ftpfs options.
/filename.tar#utar/[dir-inside-tar]
The mc.ext file already provides a shortcut for tar files, this means that usually you just point to a tar file and press return to enter into the tar file, see the Extension File Edit section for details on how this is done.
Examples:
mc-3.0.tar.gz#utar/mc-3.0/vfs
/ftp/GCC/gcc-2.7.0.tar#utar
The latter specifies the full path of the tar archive.
To connect to a remote machine, you just need to chdir into a special directory which name is in the following format:
/#sh:[user@]machine[:options]/[remote-dir]
The user, options and remote-dir elements are optional. If you specify the user element, the Midnight Commander will try to login on the remote machine as that user, otherwise it will use your login name.
The options are 'C' - use compression and 'rsh' use rsh instead of ssh. If the remote-dir element is present, your current directory on the remote machine will be set to this one.
Examples:
/#sh:onlyrsh.mx:r/linux/local
/#sh:joe@want.compression.edu:C/private
/#sh:joe@noncompressed.ssh.edu/private
To connect to a remote machine, you just need to chdir into a special directory which name is in the following format:
/#mc:[user@]machine[:port][remote-dir]
The user, port and remote-dir elements are optional. If you specify the user element then the Midnight Commander will try to logon on the remote machine as that user, otherwise it will use your login name.
The port element is used when the remote server is running on a special port (see the mcserv(8) manual page for more information about ports); finally, if the remote-dir element is present, your current directory on the remote machine will be set to this one.
Examples:
/#mc:ftp.nuclecu.unam.mx/linux/local
/#mc:joe@foo.edu:11321/private
To use this file system, you have to chdir into the special file name formed by the "/#undel" prefix and the file name where the actual file system resides.
For example, to recover deleted files on the second partition of the first SCSI disk on Linux, you would use the following path name:
/#undel:sda2
It may take a while for the undelfs to load the required information before you start browsing files there.
/#smb:[user@]machine[/service][/remote-dir]
The user, service and remote-dir elements are optional. The user, domain and password can be specified in an input dialog.
Examples:
/#smb:machine/Share
/#smb:other_machine
/#smb:guest@machine/Public/Irlex
Extfs filesystems can be divided into two categories:
1. Stand-alone filesystems, which are not associated with any existing file. They represent certain system-wide data as a directory tree. You can invoke them by typing 'cd #fsname' where fsname is an extfs short name (see below). Examples of such filesystems include audio (list audio tracks on the CD) or apt (list of all Debian packages in the system).
For example, to list CD-Audio tracks on your CD-ROM drive, type
cd #audio
2. 'Archive' filesystems (like rpm, patchfs and more), which represent contents of a file as a directory tree. It can consist of 'real' files compressed in an archive (urar, rpm) or virtual files, like messages in a mailbox (mailfs) or parts of a patch (patchfs). To access such filesystems '#fsname' should be appended to the archive name. Note that the archive itself can be on another vfs.
For example, to list contents of a zip archive documents.zip type
cd documents.zip#uzip
In many aspects, you could treat extfs like any other directory. For instance, you can add it to the hotlist or change to it from directory history. An important limitation is that you cannot invoke shell commands inside extfs, just like any other non-local VFS.
Common extfs scripts included with Midnight Commander are:
You could bind file type/extension to specified extfs as described in the Extension File Edit section. Here is an example entry for Debian packages:
regex/.deb$
Open=%cd %p#deb
If the program is compiled with the Slang screen manager instead of ncurses, it will also check the variable COLORTERM, if it is set, it has the same effect as the -c flag.
You may specify terminals that always force color mode by adding the color_terminals variable to the Colors section of the initialization file. This will prevent the Midnight Commander from trying to detect if your terminal supports color. Example:
[Colors] color_terminals=linux,xterm color_terminals=terminal-name1,terminal-name2...
The program can be compiled with both ncurses and slang, ncurses does not provide a way to force color mode: ncurses uses just the information in the terminal database.
The Midnight Commander provides a way to change the default colors. Currently the colors are configured using the environment variable MC_COLOR_TABLE or the Colors section in the initialization file.
In the Colors section, the default color map is loaded from the base_color variable. You can specify an alternate color map for a terminal by using the terminal name as the key in this section. Example:
[Colors] base_color= xterm=menu=magenta:marked=,magenta:markselect=,red
The format for the color definition is:
<keyword>=<foregroundcolor>,<backgroundcolor>:<keyword>= ...
The colors are optional, and the keywords are: normal, selected, marked, markselect, errors, input, reverse, gauge. Menu colors are: menu, menusel, menuhot, menuhotsel. Dialog colors are: dnormal, dfocus, dhotnormal, dhotfocus. Help colors are: helpnormal, helpitalic, helpbold, helplink, helpslink. Viewer color is: viewunderline. Special highlighting colors are: executable, directory, link, stalelink, device, special, core. Editor colors are: editnormal, editbold, editmarked.
input determines the color of input lines used in query dialogs.
gauge determines the color of the filled part of the progress bar (gauge), which is used to show the user the progress of file operations, such as copying.
The dialog boxes use the following colors: dnormal is used for the normal text, dfocus is the color used for the currently selected component, dhotnormal is the color used to differentiate the hotkey color in normal components, whereas the dhotfocus color is used for the highlighted color in the currently selected component.
Menus use the same scheme but uses the menu, menusel, menuhot and menuhotsel tags instead.
Help uses the following colors: helpnormal is used for normal text, helpitalic is used for text which is emphasized in italic in the manual page, helpbold is used for text which is emphasized in bold in the manual page, helplink is used for not selected hyperlinks and helpslink is used for selected hyperlink.
Special highlight colors determine how files are displayed when file highlighting is enabled (see the section on Layout). directory is used for directories or symbolic links to directories; executable for executable files; link is used for symbolic links which are neither stale nor linked to a directory; stalelink is used for stale symbolic links; device - character and block devices; special is used for special files, such as pipes and sockets; core is for core files.
The possible colors are: black, gray, red, brightred, green, brightgreen, brown, yellow, blue, brightblue, magenta, brightmagenta, cyan, brightcyan, lightgray and white. And there is a special keyword for transparent background. It is 'default'. The 'default' can only be used for background color. Example:
[Colors] base_color=normal=white,default:marked=magenta,default
These variables may be set in your ~/.mc/ini file:
The possible key symbols are:
f0 to f20 Function keys f0-f20 bs backspace home home key end end key up up arrow key down down arrow key left left arrow key right right arrow key pgdn page down key pgup page up key insert the insert character delete the delete character complete to do completion
For example, to define the key insert to be the Escape + [ + O + p, you set this in the ini file:
insert=\e[Op
The complete key symbol represents the escape sequences used to invoke the completion process, this is invoked with Alt-tab, but you can define other keys to do the same work (on those keyboard with tons of nice and unused keys everywhere).
/usr/share/mc/mc.hlp
/usr/share/mc/mc.ext
~/.mc/bindings
/usr/share/mc/mc.ini
/usr/share/mc/mc.lib
~/.mc/ini
/usr/share/mc/mc.hint
/usr/share/mc/mc.menu
~/.mc/menu
~/.mc/Tree
./.mc.menu
The Midnight Commander page on the World Wide Web:
http://www.ibiblio.org/mc/
If you want to report a problem with the program, please send mail to this address: mc-devel@gnome.org.
Provide a detailed description of the bug, the version of the program you are running (mc -V displays this information), the operating system you are running the program on. If the program crashes, we would appreciate a stack trace.
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